{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447798047",
    "entityType": "User",
    "nonce": "0x7c43931cf7159ff964a05dc3c7219d70dd57fea71d5283b52eab10a3e11ef6aa",
    "signature": "0x155f3dfc4ef2bfdb057b429d89869652ec677cd113c2060d130080709a84af7d61cf720ddd6a6ee30ea2b6248216887c61575aa70b268aa1bfcfa18eb53ff1601c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}